High-concentration and high-salinity nondegradable organic wastewater treatment system

Abstract

The invention provides a high-concentration and high-salinity nondegradable organic wastewater treatment system. Based on the principle of an advanced oxidation technique, synergistic effect is carried out on ozone bubble of micro nanoscale and ultrasonic wave to optimize the ozone dissolving efficiency so that the high-concentration and high-salinity nondegradable organic wastewater can be effectively treated. The high-concentration and high-salinity nondegradable organic wastewater treatment system comprises a micro nanometer bubble generator, a micro nanometer bubble reactor, an ozone generator, an ultrasonic wave generator and an energy converter. The micro nanometer bubble generator comprises a micro nanometer bubble generator host and an aerator; the micro nanometer bubble generator host comprises a gas dissolving device capable of mixing gas liquid under a closed condition and a booster pump connected with the gas dissolving device; an air inlet of the gas dissolving device is connected with the ozone generator; a water inlet is connected with the micro nanometer bubble reactor; a water outlet is connected on the aerator arranged in the micro nanometer bubble reactor; and the micro nanometer bubble reactor is also internally provided with an ultrasonic energy converter connected with the ultrasonic wave generator.

Description

technical field [0001] The invention relates to the field of wastewater treatment, in particular to a high-concentration, high-salinity refractory organic wastewater treatment system. Background technique [0002] High-concentration refractory organic wastewater has always been a big problem in the water treatment industry. At the same time, it also contains high salinity, and ordinary treatment methods cannot meet the treatment requirements. [0003] In general, the conventional process of wastewater treatment mostly adopts biochemical treatment. The traditional biochemical treatment method cannot meet the treatment requirements for high-concentration refractory organic wastewater. This is mainly because the oxidation reaction of refractory organic matter to microorganisms is difficult to achieve. Its stable benzene ring structure, long chain structure, or more functional groups hinder the oxidation process of microorganisms. If the wastewater contains high salinity, it is ...

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Problems solved by technology

The evaporation method mainly realizes the concentration and separation of pollutants in the wastewater by reducing the saturated vapor pressure, heating and other means, and scaling problems often occur in engineering applications; the reverse osmosis filtration method overcomes the osmotic pressure by increasing the pressure in a section of the organic membrane , to achieve the separation of water, organic matter, and salts, and the problems of membrane fouling and scrapping often occur in engineering; extraction is also the separation and enrichment of pollutants by using the solubility difference of solutes in different solvents, and the case of domestic application of extraction methods Less, mainly because the amount of waste water is large, and the extraction agent is relatively expensive, and the project has higher requirements on the reaction conditions. Although these methods can separate the pollutants in the waste water and purify the water quality, the pollutants themselves have not changed. , after being concentrated, it is still difficult to handle, forming secondary pollution

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